119138813 has 4 divisors (see below), whose sum is σ = 119522208. Its totient is φ = 118755420.

The previous prime is 119138791. The next prime is 119138857. The reversal of 119138813 is 318831911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 318831911 = 23 ⋅13862257.

It is a cyclic number.

It is not a de Polignac number, because 119138813 - 2²⁰ = 118090237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119131813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191231 + ... + 191852.

It is an arithmetic number, because the mean of its divisors is an integer number (29880552).

Almost surely, 2^119138813 is an apocalyptic number.

It is an amenable number.

119138813 is a deficient number, since it is larger than the sum of its proper divisors (383395).

119138813 is an equidigital number, since it uses as much as digits as its factorization.

119138813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383394.

The product of its digits is 5184, while the sum is 35.

The square root of 119138813 is about 10915.0727436880. The cubic root of 119138813 is about 492.0596532975.

It can be divided in two parts, 1191 and 38813, that added together give a palindrome (40004).

The spelling of 119138813 in words is "one hundred nineteen million, one hundred thirty-eight thousand, eight hundred thirteen".